Go 如何修复proxyconnect tcp：tls：第一条记录看起来不像tls握手

我刚试过了:

package main

import (
    "context"
    "crypto/tls"
    "encoding/json"
    "fmt"
    "net"
    "net/http"
    "time"
)

type CatFact struct {
    Fact   string `json:"fact"`
    Length int    `json:"length"`
}

// Custom dialing function to handle connections
func customDialContext(ctx context.Context, network, addr string) (net.Conn, error) {
    conn, err := net.Dial(network, addr)
    return conn, err
}

// Function to get a cat fact
func GetCatFact(client *http.Client) {
    url := "https://catfact.ninja/fact"  // Reverted back to https
    var catFact CatFact

    err := GetJson(url, &catFact, client)
    if err != nil {
        fmt.Printf("error getting cat fact: %s\n", err.Error())
    } else {
        fmt.Printf("A super interesting Cat Fact: %s\n", catFact.Fact)
    }
}

// Function to send a GET request and decode the JSON response
func GetJson(url string, target interface{}, client *http.Client) error {
    resp, err := client.Get(url)
    if err != nil {
        return fmt.Errorf("error sending GET request: %w", err)
    }
    defer resp.Body.Close()

    if resp.StatusCode != http.StatusOK {
        return fmt.Errorf("received non-OK HTTP status: %d", resp.StatusCode)
    }

    err = json.NewDecoder(resp.Body).Decode(target)
    if err != nil {
        return fmt.Errorf("error decoding JSON response: %w", err)
    }

    return nil
}

func main() {
    // Create a custom Transport with the desired settings
    tr := &http.Transport{
        Proxy: http.ProxyFromEnvironment,  // Use the proxy settings from the environment
        DialContext: customDialContext,    // Use the custom dialing function
        TLSClientConfig: &tls.Config{
            InsecureSkipVerify: true,  // Skip certificate verification (not recommended in production)
        },
    }

    // Create a new HTTP client using the custom Transport
    client := &http.Client{
        Transport: tr,
        Timeout:   10 * time.Second,
    }

    // Call the function to get a cat fact
    GetCatFact(client)
}

它包括:

• A custom dialing function customDialContext:
  That function is currently a simple wrapper around net.Dial, but it provides a place where custom dialing logic could be introduced if necessary. It serves as a custom dialing function that is used to create network connections.

• Transport configuration:个

  • 修改后的代码使用特定设置配置自定义http.Transport，包括自定义拨号功能、来自环境的代理设置以及跳过证书验证(用于测试)的TLS配置.
  • 原始代码还试图配置自定义http.Transport，但它只包括跳过证书验证的TLS配置，并且没有设置自定义拨号功能或代理设置.

• Client configuration:个

  • 修改后的代码使用自定义http.Transport创建一个新的http.Client，并将超时设置为10秒.
  • 原始代码还试图使用自定义http.Transport创建一个新的http.Client，但后来在main函数中，它用具有默认Transport和超时10秒的新http.Client覆盖了client变量，从而有效地丢弃了自定义Transport.

• Function signatures:个

  • 修改后的代码修改了GetCatFact和GetJson函数以接受*http.Client参数，允许它们使用在main中创建的自定义http.Client.
  • 原始代码没有将http.Client传递给这些函数，因此它们将使用net/http包提供的默认http.Client.

• URL:个

  • 修改后的代码将url恢复为"GetCatFact函数中的https://catfact.ninja/fact"，因为服务器无论如何都会将HTTPS请求重定向到HTTPS.
  • 原始代码将url更改为"http://catfact.ninja/fact""，以避免TLS握手错误.